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abc
Commit eb4cdcdc by Alan Mishchenko
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Version abc50908

parent 1260d20c
Showing with 747 additions and 766 deletions
Makefile
......@@ -13,7 +13,7 @@ MODULES := src/base/abc src/base/abci src/base/abcs src/base/cmd src/base/io src
src/opt/cut src/opt/dec src/opt/fxu src/opt/rwr src/opt/sim \
src/sat/asat src/sat/csat src/sat/msat src/sat/fraig
default: $(PROG)
#default: $(PROG)
OPTFLAGS := -DNDEBUG -O3
#OPTFLAGS := -g -O
......@@ -59,6 +59,10 @@ tags:
$(PROG): $(OBJ)
$(LD) -o $@ $^ $(LIBS)
lib$(PROG).a: $(OBJ)
ar rv $@ $?
ranlib $@
docs:
doxygen doxygen.conf
abc.dsp deleted 100644 → 0
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abc.dsw deleted 100644 → 0
Microsoft Developer Studio Workspace File, Format Version 6.00
# WARNING: DO NOT EDIT OR DELETE THIS WORKSPACE FILE!
###############################################################################
Project: "abc"=.\abc.dsp - Package Owner=<4>
Package=<5>
{{{
}}}
Package=<4>
{{{
}}}
###############################################################################
Global:
Package=<5>
{{{
}}}
Package=<3>
{{{
}}}
###############################################################################
abc.opt deleted 100644 → 0
File deleted
abc.plg deleted 100644 → 0
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abc.rc
......@@ -62,4 +62,5 @@ alias sharem "b; ren -m; fx; b"
alias sharedsd "b; ren; dsd -g; sw; fx; b"
alias resyn "b; rw; rwz; b; rwz; b"
alias resyn2 "b; rw; rf; b; rw; rwz; b; rfz; rwz; b"
alias thin "rwz; rfz; b; ps"
demo.c 0 → 100644
// Demo program for the static library project of ABC
#include <stdio.h>
#include "src/sat/csat/csat_apis.h"
// procedures to start and stop the ABC framework
extern void Abc_Start();
extern void Abc_Stop();
// simple test prog
int main( int argc, char * argv[] )
{
CSAT_Manager_t * mng;
CSAT_Target_ResultT * pResult;
char * Names[2];
int Values[2];
int i;
// start ABC
// (calling Abc_Start() for each problem is timeconsuming
// because it allocates some internal data structures used by decomposition packages
// so Abc_Start should be called once before creating many solution managers)
Abc_Start();
// start the solution manager
// (the manager can be reused for several targets if the targets
// use the same network and only differ in the asserted values;
// however, only one target can be loaded into the manager at any time)
mng = CSAT_InitManager();
// create a simple circuit
// PIs: A, B, C
// POs: F = ((AB)C) <+> (A(BC))
// Internal nodes:
// X = AB U = XC
// Y = BC W = AY
// G = U <+> W
// F = G
// PIs should be added first
CSAT_AddGate( mng, CSAT_BPI, "A", 0, NULL, 0 );
CSAT_AddGate( mng, CSAT_BPI, "B", 0, NULL, 0 );
CSAT_AddGate( mng, CSAT_BPI, "C", 0, NULL, 0 );
// internal nodes should be added next
Names[0] = "A";
Names[1] = "B";
CSAT_AddGate( mng, CSAT_BAND, "X", 2, Names, 0 );
// CSAT_AddGate( mng, CSAT_BOR, "X", 2, Names, 0 ); // use this line to make the problem SATISFIABLE
Names[0] = "X";
Names[1] = "C";
CSAT_AddGate( mng, CSAT_BAND, "U", 2, Names, 0 );
Names[0] = "B";
Names[1] = "C";
CSAT_AddGate( mng, CSAT_BAND, "Y", 2, Names, 0 );
Names[0] = "A";
Names[1] = "Y";
CSAT_AddGate( mng, CSAT_BAND, "W", 2, Names, 0 );
Names[0] = "U";
Names[1] = "W";
CSAT_AddGate( mng, CSAT_BXOR, "G", 2, Names, 0 );
// POs should be added last
Names[0] = "G";
CSAT_AddGate( mng, CSAT_BPO, "F", 1, Names, 0 );
// check integrity of the manager (and finalize ABC network in the manager!)
if ( CSAT_Check_Integrity( mng ) )
printf( "Integrity is okey.\n" );
else
printf( "Integrity is NOT okey.\n" );
// dump the problem into a BENCH file
// currently BENCH file can only be written for an AIG
// so we will transform the network into AIG before dumping it
CSAT_EnableDump( mng, "simple.bench" );
CSAT_Dump_Bench_File( mng );
// set the solving target (only one target at a time!)
// the target can be expressed sing PI/PO or internal nodes
Names[0] = "F";
Values[0] = 1;
CSAT_AddTarget( mng, 1, Names, Values );
// initialize the sover
CSAT_SolveInit( mng );
// set the solving option (0 = brute-force SAT; 1 = resource-aware FRAIG)
CSAT_SetSolveOption( mng, 1 );
// solves the last added target
CSAT_Solve( mng );
// get the result of solving
pResult = CSAT_Get_Target_Result( mng, 0 );
// print the report
if ( pResult->status == UNDETERMINED )
printf( "The problem is UNDETERMINED.\n" );
else if ( pResult->status == UNSATISFIABLE )
printf( "The problem is UNSATISFIABLE.\n" );
else if ( pResult->status == SATISFIABLE )
{
printf( "The problem is SATISFIABLE.\n" );
printf( "Satisfying assignment is: " );
for ( i = 0; i < pResult->no_sig; i++ )
printf( "%s=%d ", pResult->names[i], pResult->values[i] );
printf( "\n" );
}
// free everything to prevent memory leaks
CSAT_TargetResFree( pResult );
CSAT_QuitManager( mng );
Abc_Stop();
return 0;
}
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.model iscas\s444.bench
.inputs G0 G1 G2
.outputs G118 G167 G107 G119 G168 G108
.latch G11_in G11 0
.latch G12_in G12 0
.latch G13_in G13 0
.latch G14_in G14 0
.latch G15_in G15 0
.latch G16_in G16 0
.latch G17_in G17 0
.latch G18_in G18 0
.latch G19_in G19 0
.latch G20_in G20 0
.latch G21_in G21 0
.latch G22_in G22 0
.latch G23_in G23 0
.latch G24_in G24 0
.latch G25_in G25 0
.latch G26_in G26 0
.latch G27_in G27 0
.latch G28_in G28 0
.latch G29_in G29 0
.latch G30_in G30 0
.latch G31_in G31 0
.names G12 G13 [25]
00 1
.names G11 [25] [26]
01 1
.names G14 [26] [27]
10 1
.names G0 G11 [28]
00 1
.names [27] [28] G11_in
01 1
.names G11 G12 [30]
11 1
.names G12 [30] [31]
10 1
.names G11 [30] [32]
10 1
.names [31] [32] [33]
00 1
.names G0 [33] [34]
00 1
.names [27] [34] G12_in
01 1
.names G13 [30] [36]
11 1
.names G13 [36] [37]
10 1
.names [30] [36] [38]
10 1
.names [37] [38] [39]
00 1
.names G0 [39] [40]
00 1
.names [27] [40] G13_in
01 1
.names G12 G13 [42]
11 1
.names G11 [42] [43]
11 1
.names G14 [43] [44]
11 1
.names G14 [44] [45]
10 1
.names [43] [44] [46]
10 1
.names [45] [46] [47]
00 1
.names G0 [47] [48]
00 1
.names [27] [48] G14_in
01 1
.names G31 [27] [50]
00 1
.names G16 G17 [51]
00 1
.names G15 [51] [52]
01 1
.names [50] [52] [53]
00 1
.names G18 [53] [54]
11 1
.names G15 [50] [55]
10 1
.names G15 [55] [56]
10 1
.names [50] [55] [57]
00 1
.names [56] [57] [58]
00 1
.names G0 [58] [59]
00 1
.names [54] [59] G15_in
01 1
.names G16 [55] [61]
11 1
.names G16 [61] [62]
10 1
.names [55] [61] [63]
10 1
.names [62] [63] [64]
00 1
.names G0 [64] [65]
00 1
.names [54] [65] G16_in
01 1
.names G16 [50] [67]
10 1
.names G15 [67] [68]
11 1
.names G17 [68] [69]
11 1
.names G17 [69] [70]
10 1
.names [68] [69] [71]
10 1
.names [70] [71] [72]
00 1
.names G0 [72] [73]
00 1
.names [54] [73] G17_in
01 1
.names G15 G16 [75]
11 1
.names G17 [50] [76]
10 1
.names [75] [76] [77]
11 1
.names G18 [77] [78]
11 1
.names G18 [78] [79]
10 1
.names [77] [78] [80]
10 1
.names [79] [80] [81]
00 1
.names G0 [81] [82]
00 1
.names [54] [82] G18_in
01 1
.names G20 G21 [84]
00 1
.names G19 [84] [85]
01 1
.names [54] [85] [86]
10 1
.names G22 [86] [87]
11 1
.names G19 [54] [88]
11 1
.names G19 [88] [89]
10 1
.names [54] [88] [90]
10 1
.names [89] [90] [91]
00 1
.names G0 [91] [92]
00 1
.names [87] [92] G19_in
01 1
.names G20 [88] [94]
11 1
.names G20 [94] [95]
10 1
.names [88] [94] [96]
10 1
.names [95] [96] [97]
00 1
.names G0 [97] [98]
00 1
.names [87] [98] G20_in
01 1
.names G20 [54] [100]
11 1
.names G19 [100] [101]
11 1
.names G21 [101] [102]
11 1
.names G21 [102] [103]
10 1
.names [101] [102] [104]
10 1
.names [103] [104] [105]
00 1
.names G0 [105] [106]
00 1
.names [87] [106] G21_in
01 1
.names G19 G20 [108]
11 1
.names G21 [54] [109]
11 1
.names [108] [109] [110]
11 1
.names G22 [110] [111]
11 1
.names G22 [111] [112]
10 1
.names [110] [111] [113]
10 1
.names [112] [113] [114]
00 1
.names G0 [114] [115]
00 1
.names [87] [115] G22_in
01 1
.names G2 G23 [117]
00 1
.names G2 G23 [118]
11 1
.names [117] [118] [119]
00 1
.names G0 [119] G23_in
01 1
.names G20 G21 [121]
01 1
.names G0 G23 [122]
01 1
.names [121] [122] [123]
11 1
.names G19 [123] [124]
01 1
.names G21 G22 [126]
10 1
.names G19 G20 [125]
10 1
.names G23 [125] [127]
01 1
.names [126] [127] [128]
11 1
.names G0 G24 [129]
01 1
.names [128] [129] [130]
01 1
.names [124] [130] [131]
00 1
.names G22 G23 [132]
00 1
.names [125] [132] [133]
11 1
.names G24 [133] [134]
10 1
.names G19 G20 [135]
00 1
.names G23 [135] [136]
11 1
.names G22 G23 [137]
11 1
.names [136] [137] [138]
00 1
.names G0 G21 [139]
01 1
.names [138] [139] [140]
11 1
.names [134] [140] G25_in
01 1
.names G19 G22 [142]
01 1
.names G0 [142] [143]
01 1
.names G0 [108] [144]
01 1
.names [143] [144] [145]
00 1
.names [129] [139] [146]
00 1
.names [145] [146] G26_in
11 1
.names G21 G24 [148]
00 1
.names [125] [148] [149]
11 1
.names G21 G22 [150]
00 1
.names G24 [150] [151]
01 1
.names G0 [151] [152]
00 1
.names [149] [152] [153]
01 1
.names G0 G22 [154]
01 1
.names [135] [154] [155]
11 1
.names [146] [155] [156]
10 1
.names [131] [156] [157]
00 1
.names G17 [157] [158]
01 1
.names [131] [156] [159]
10 1
.names [158] [159] G28_in
00 1
.names [122] [126] [161]
11 1
.names G21 G22 [162]
01 1
.names G0 [162] [163]
01 1
.names [161] [163] [164]
00 1
.names G20 [164] [165]
00 1
.names G19 [165] [166]
01 1
.names [130] [166] [167]
00 1
.names [131] [167] [168]
00 1
.names G17 [168] [169]
01 1
.names [131] [167] [170]
10 1
.names [169] [170] G29_in
00 1
.names G20 G21 [172]
10 1
.names G0 G24 [173]
00 1
.names [172] [173] [174]
11 1
.names G19 [174] G30_in
11 1
.names G1 G31 [176]
00 1
.names G1 G31 [177]
11 1
.names [176] [177] [178]
00 1
.names G0 [178] G31_in
01 1
.names [131] G24_in
0 1
.names [153] G27_in
0 1
.names G27 G118
1 1
.names G29 G167
0 1
.names G25 G107
1 1
.names G28 G119
0 1
.names G30 G168
1 1
.names G26 G108
1 1
.end
regtest.script deleted 100644 → 0
r examples/apex4.pla
resyn
sharem
fpga
cec
ps
clp
share
resyn
map
cec
ps
r examples/C2670.blif
resyn
fpga
cec
ps
u
map
cec
ps
r examples/frg2.blif
dsd
muxes
cec
clp
share
resyn
map
cec
ps
r examples/pj1.blif
resyn
fpga
cec
ps
u
map
cec
ps
r examples/s38584.bench
resyn
fpga
cec
ps
u
map
cec
ps
r examples/ac.v
resyn
fpga
cec
ps
u
map
cec
ps
r examples/s444.blif
b
esd -v
dsd
cec
ps
r examples/i10.blif
fpga
cec
ps
u
map
cec
ps
r examples/i10.blif
b
fraig_store
resyn
fraig_store
resyn2
fraig_store
fraig_restore
fpga
cec
ps
u
map
cec
ps
time
regtest_output.txt deleted 100644 → 0
UC Berkeley, ABC 1.01 (compiled Sep 5 2005 23:36:08)
abc 01> so regtest.script
abc - > r examples/apex4.pla
abc - > resyn
abc - > sharem
abc - > fpga
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
examples/apex4.pla: i/o = 9/ 19 lat = 0 nd = 784 cube = 1985 lev = 5
abc - >
abc - > clp
The shared BDD size is 917 nodes.
abc - > share
abc - > resyn
abc - > map
A simple supergate library is derived from gate library "mcnc_temp.genlib".
Loaded 20 unique 5-input supergates from "mcnc_temp.super". Time = 0.02 sec
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
examples/apex4.pla: i/o = 9/ 19 lat = 0 nd = 1816 area = 4599.00 delay = 11.50 lev = 11
abc - >
abc - > r examples/C2670.blif
abc - > resyn
abc - > fpga
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
C2670.iscas : i/o = 233/ 140 lat = 0 nd = 169 cube = 482 lev = 6
abc - >
abc - > u
abc - > map
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
C2670.iscas : i/o = 233/ 140 lat = 0 nd = 465 area = 1142.00 delay = 15.50 lev = 14
abc - >
abc - > r examples/frg2.blif
abc - > dsd
abc - > muxes
abc - > cec
Networks are equivalent after fraiging.
abc - > clp
The shared BDD size is 1111 nodes.
abc - > share
abc - > resyn
abc - > map
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
frg2 : i/o = 143/ 139 lat = 0 nd = 540 area = 1360.00 delay = 10.10 lev = 9
abc - >
abc - > r examples/pj1.blif
abc - > resyn
abc - > fpga
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
exCombCkt : i/o = 1769/1063 lat = 0 nd = 4730 cube = 10662 lev = 12
abc - >
abc - > u
abc - > map
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
exCombCkt : i/o = 1769/1063 lat = 0 nd = 10396 area = 25170.00 delay = 29.20 lev = 27
abc - >
abc - > r examples/s38584.bench
abc - > resyn
The network has 26 self-feeding latches.
abc - > fpga
abc - > cec
The network has 26 self-feeding latches.
The network has 26 self-feeding latches.
Networks are equivalent after fraiging.
abc - > ps
examples/s38584.bench: i/o = 12/ 278 lat = 1452 nd = 3239 cube = 6769 lev = 7
abc - >
abc - > u
abc - > map
The network has 26 self-feeding latches.
abc - > cec
The network has 26 self-feeding latches.
The network has 26 self-feeding latches.
Networks are equivalent after fraiging.
abc - > ps
examples/s38584.bench: i/o = 12/ 278 lat = 1452 nd = 8522 area = 19305.00 delay = 20.60 lev = 17
abc - >
abc - > r examples/ac.v
abc - > resyn
abc - > fpga
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
ac97_ctrl : i/o = 84/ 48 lat = 2199 nd = 3652 cube = 9391 lev = 3
abc - >
abc - > u
abc - > map
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
ac97_ctrl : i/o = 84/ 48 lat = 2199 nd = 8337 area = 19861.00 delay = 8.10 lev = 8
abc - >
abc - > r examples/s444.blif
abc - > b
abc - > esd -v
The shared BDD size is 181 nodes.
BDD nodes in the transition relation before reordering 557.
BDD nodes in the transition relation after reordering 456.
Reachability analysis completed in 151 iterations.
The number of minterms in the reachable state set = 8865.
BDD nodes in the unreachable states before reordering 124.
BDD nodes in the unreachable states after reordering 113.
abc - > dsd
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
iscas\s444.bench: i/o = 3/ 6 lat = 21 nd = 81 cube = 119 lev = 7
abc - >
abc - > r examples/i10.blif
abc - > fpga
The network was strashed and balanced before FPGA mapping.
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
i10 : i/o = 257/ 224 lat = 0 nd = 741 cube = 1616 lev = 11
abc - > u
abc - > map
The network was strashed and balanced before mapping.
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
i10 : i/o = 257/ 224 lat = 0 nd = 1659 area = 4215.00 delay = 30.80 lev = 27
abc - >
abc - > r examples/i10.blif
abc - > b
abc - > fraig_store
The number of AIG nodes added to storage = 2425.
abc - > resyn
abc - > fraig_store
The number of AIG nodes added to storage = 1678.
abc - > resyn2
abc - > fraig_store
The number of AIG nodes added to storage = 1323.
abc - > fraig_restore
Currently stored 3 networks with 5426 nodes will be fraiged.
abc - > fpga
Performing FPGA mapping with choices.
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
i10 : i/o = 257/ 224 lat = 0 nd = 674 cube = 1498 lev = 10
abc - >
abc - > u
abc - > map
Performing mapping with choices.
abc - > cec
Networks are equivalent after fraiging.
abc - > ps
i10 : i/o = 257/ 224 lat = 0 nd = 1505 area = 3561.00 delay = 25.00 lev = 22
abc - >
abc 109> time
elapse: 77.52 seconds, total: 77.52 seconds
abc 109>
\ No newline at end of file
src/base/abc/abc.h
......@@ -147,10 +147,10 @@ struct Abc_Ntk_t_
Vec_Ptr_t * vCos; // the array of combinational outputs (POs followed by latches)
Vec_Ptr_t * vLats; // the array of latches (or the cutset in the sequential network)
// the stats about the number of living objects
int nObjs; // the number of living objs
int nNets; // the number of living nets
int nNodes; // the number of living nodes
int nLatches; // the number of latches
int nObjs; // the number of live objs
int nNets; // the number of live nets
int nNodes; // the number of live nodes
int nLatches; // the number of live latches
int nPis; // the number of primary inputs
int nPos; // the number of primary outputs
// the functionality manager
......@@ -167,6 +167,8 @@ struct Abc_Ntk_t_
Vec_Int_t * vLevelsR; // level in the reverse topological order
// support information
Vec_Ptr_t * vSupps;
// the satisfiable assignment of the miter
int * pModel;
// the external don't-care if given
Abc_Ntk_t * pExdc; // the EXDC network
// miscellaneous data members
......@@ -401,7 +403,7 @@ extern Abc_Obj_t * Abc_AigAndLookup( Abc_Aig_t * pMan, Abc_Obj_t * p0, Ab
extern Abc_Obj_t * Abc_AigOr( Abc_Aig_t * pMan, Abc_Obj_t * p0, Abc_Obj_t * p1 );
extern Abc_Obj_t * Abc_AigXor( Abc_Aig_t * pMan, Abc_Obj_t * p0, Abc_Obj_t * p1 );
extern Abc_Obj_t * Abc_AigMiter( Abc_Aig_t * pMan, Vec_Ptr_t * vPairs );
extern void Abc_AigReplace( Abc_Aig_t * pMan, Abc_Obj_t * pOld, Abc_Obj_t * pNew );
extern void Abc_AigReplace( Abc_Aig_t * pMan, Abc_Obj_t * pOld, Abc_Obj_t * pNew, bool fUpdateLevel );
extern void Abc_AigDeleteNode( Abc_Aig_t * pMan, Abc_Obj_t * pOld );
extern bool Abc_AigNodeHasComplFanoutEdge( Abc_Obj_t * pNode );
extern bool Abc_AigNodeHasComplFanoutEdgeTrav( Abc_Obj_t * pNode );
......@@ -414,6 +416,7 @@ extern Abc_Ntk_t * Abc_NtkBalance( Abc_Ntk_t * pNtk, bool fDuplicate );
/*=== abcCheck.c ==========================================================*/
extern bool Abc_NtkCheck( Abc_Ntk_t * pNtk );
extern bool Abc_NtkCheckRead( Abc_Ntk_t * pNtk );
extern bool Abc_NtkDoCheck( Abc_Ntk_t * pNtk );
extern bool Abc_NtkCheckObj( Abc_Ntk_t * pNtk, Abc_Obj_t * pObj );
extern bool Abc_NtkCompareSignals( Abc_Ntk_t * pNtk1, Abc_Ntk_t * pNtk2, int fComb );
/*=== abcCollapse.c ==========================================================*/
......@@ -427,6 +430,7 @@ extern void Abc_NodeFreeCuts( void * p, Abc_Obj_t * pObj );
extern Vec_Ptr_t * Abc_NtkDfs( Abc_Ntk_t * pNtk, int fCollectAll );
extern Vec_Ptr_t * Abc_NtkDfsNodes( Abc_Ntk_t * pNtk, Abc_Obj_t ** ppNodes, int nNodes );
extern Vec_Ptr_t * Abc_NtkDfsReverse( Abc_Ntk_t * pNtk );
extern Vec_Ptr_t * Abc_NtkNodeSupport( Abc_Ntk_t * pNtk, Abc_Obj_t ** ppNodes, int nNodes );
extern Vec_Ptr_t * Abc_AigDfs( Abc_Ntk_t * pNtk, int fCollectAll, int fCollectCos );
extern Vec_Vec_t * Abc_DfsLevelized( Abc_Obj_t * pNode, bool fTfi );
extern int Abc_NtkGetLevelNum( Abc_Ntk_t * pNtk );
......@@ -440,6 +444,7 @@ extern void Abc_ObjTransferFanout( Abc_Obj_t * pObjOld, Abc_Obj_t
extern void Abc_ObjReplace( Abc_Obj_t * pObjOld, Abc_Obj_t * pObjNew );
/*=== abcFraig.c ==========================================================*/
extern Abc_Ntk_t * Abc_NtkFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes );
extern void * Abc_NtkToFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes );
extern Abc_Ntk_t * Abc_NtkFraigTrust( Abc_Ntk_t * pNtk );
extern int Abc_NtkFraigStore( Abc_Ntk_t * pNtk );
extern Abc_Ntk_t * Abc_NtkFraigRestore();
......@@ -470,9 +475,6 @@ extern void Abc_NtkMiterReport( Abc_Ntk_t * pMiter );
extern int Abc_NtkAppend( Abc_Ntk_t * pNtk1, Abc_Ntk_t * pNtk2 );
extern Abc_Ntk_t * Abc_NtkFrames( Abc_Ntk_t * pNtk, int nFrames, int fInitial );
/*=== abcObj.c ==========================================================*/
extern Abc_Obj_t * Abc_ObjAlloc( Abc_Ntk_t * pNtk, Abc_ObjType_t Type );
extern void Abc_ObjRecycle( Abc_Obj_t * pObj );
extern void Abc_ObjAdd( Abc_Obj_t * pObj );
extern Abc_Obj_t * Abc_NtkDupObj( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pObj );
extern Abc_Obj_t * Abc_NtkDupConst1( Abc_Ntk_t * pNtkAig, Abc_Ntk_t * pNtkNew );
extern Abc_Obj_t * Abc_NtkDupReset( Abc_Ntk_t * pNtkAig, Abc_Ntk_t * pNtkNew );
......@@ -560,12 +562,13 @@ extern Vec_Ptr_t * Abc_NodeCollectTfoCands( Abc_ManCut_t * p, Abc_Obj_t *
extern int Abc_NodeMffcSize( Abc_Obj_t * pNode );
extern int Abc_NodeMffcSizeStop( Abc_Obj_t * pNode );
extern int Abc_NodeMffcLabel( Abc_Obj_t * pNode );
extern int Abc_NodeMffcLabelFast( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes );
extern Vec_Ptr_t * Abc_NodeMffcCollect( Abc_Obj_t * pNode );
/*=== abcRenode.c ==========================================================*/
extern Abc_Ntk_t * Abc_NtkRenode( Abc_Ntk_t * pNtk, int nThresh, int nFaninMax, int fCnf, int fMulti, int fSimple );
extern DdNode * Abc_NtkRenodeDeriveBdd( DdManager * dd, Abc_Obj_t * pNodeOld, Vec_Ptr_t * vFaninsOld );
/*=== abcSat.c ==========================================================*/
extern bool Abc_NtkMiterSat( Abc_Ntk_t * pNtk, int fVerbose );
extern int Abc_NtkMiterSat( Abc_Ntk_t * pNtk, int nSeconds, int fVerbose );
extern solver * Abc_NtkMiterSatCreate( Abc_Ntk_t * pNtk );
/*=== abcSeq.c ==========================================================*/
extern Abc_Ntk_t * Abc_NtkAigToSeq( Abc_Ntk_t * pNtk );
......@@ -660,6 +663,8 @@ extern int Abc_NodeCompareLevelsIncrease( Abc_Obj_t ** pp1, Abc_O
extern int Abc_NodeCompareLevelsDecrease( Abc_Obj_t ** pp1, Abc_Obj_t ** pp2 );
extern Vec_Int_t * Abc_NtkFanoutCounts( Abc_Ntk_t * pNtk );
extern Vec_Ptr_t * Abc_NtkCollectObjects( Abc_Ntk_t * pNtk );
extern Vec_Int_t * Abc_NtkGetCiIds( Abc_Ntk_t * pNtk );
extern void Abc_NtkReassignIds( Abc_Ntk_t * pNtk );
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
......
src/base/abc/abcAig.c
......@@ -83,7 +83,7 @@ static Abc_Obj_t * Abc_AigAndCreateFrom( Abc_Aig_t * pMan, Abc_Obj_t * p0, Abc_O
static void Abc_AigAndDelete( Abc_Aig_t * pMan, Abc_Obj_t * pThis );
static void Abc_AigResize( Abc_Aig_t * pMan );
// incremental AIG procedures
static void Abc_AigReplace_int( Abc_Aig_t * pMan );
static void Abc_AigReplace_int( Abc_Aig_t * pMan, int fUpdateLevel );
static void Abc_AigDelete_int( Abc_Aig_t * pMan );
static void Abc_AigUpdateLevel_int( Abc_Aig_t * pMan );
static void Abc_AigUpdateLevelR_int( Abc_Aig_t * pMan );
......@@ -655,7 +655,7 @@ Abc_Obj_t * Abc_AigMiter( Abc_Aig_t * pMan, Vec_Ptr_t * vPairs )
SeeAlso []
***********************************************************************/
void Abc_AigReplace( Abc_Aig_t * pMan, Abc_Obj_t * pOld, Abc_Obj_t * pNew )
void Abc_AigReplace( Abc_Aig_t * pMan, Abc_Obj_t * pOld, Abc_Obj_t * pNew, bool fUpdateLevel )
{
assert( Vec_PtrSize(pMan->vStackReplaceOld) == 0 );
assert( Vec_PtrSize(pMan->vStackReplaceNew) == 0 );
......@@ -663,9 +663,12 @@ void Abc_AigReplace( Abc_Aig_t * pMan, Abc_Obj_t * pOld, Abc_Obj_t * pNew )
Vec_PtrPush( pMan->vStackReplaceOld, pOld );
Vec_PtrPush( pMan->vStackReplaceNew, pNew );
while ( Vec_PtrSize(pMan->vStackReplaceOld) )
Abc_AigReplace_int( pMan );
Abc_AigReplace_int( pMan, fUpdateLevel );
if ( fUpdateLevel )
{
Abc_AigUpdateLevel_int( pMan );
Abc_AigUpdateLevelR_int( pMan );
}
}
/**Function*************************************************************
......@@ -679,7 +682,7 @@ void Abc_AigReplace( Abc_Aig_t * pMan, Abc_Obj_t * pOld, Abc_Obj_t * pNew )
SeeAlso []
***********************************************************************/
void Abc_AigReplace_int( Abc_Aig_t * pMan )
void Abc_AigReplace_int( Abc_Aig_t * pMan, int fUpdateLevel )
{
Abc_Obj_t * pOld, * pNew, * pFanin1, * pFanin2, * pFanout, * pFanoutNew, * pFanoutFanout;
int k, v, iFanin;
......@@ -736,6 +739,8 @@ void Abc_AigReplace_int( Abc_Aig_t * pMan )
Abc_AigAndCreateFrom( pMan, pFanin1, pFanin2, pFanout );
assert( Abc_AigNodeIsAcyclic(pFanout, pFanout) );
if ( fUpdateLevel )
{
// schedule the updated fanout for updating direct level
assert( pFanout->fMarkA == 0 );
pFanout->fMarkA = 1;
......@@ -744,6 +749,7 @@ void Abc_AigReplace_int( Abc_Aig_t * pMan )
assert( pFanout->fMarkB == 0 );
pFanout->fMarkB = 1;
Vec_VecPush( pMan->vLevelsR, Abc_NodeReadReverseLevel(pFanout), pFanout );
}
// the fanout has changed, update EXOR status of its fanouts
Abc_ObjForEachFanout( pFanout, pFanoutFanout, v )
......
src/base/abc/abcCheck.c
......@@ -25,7 +25,6 @@
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
static bool Abc_NtkDoCheck( Abc_Ntk_t * pNtk );
static bool Abc_NtkCheckNames( Abc_Ntk_t * pNtk );
static bool Abc_NtkCheckPis( Abc_Ntk_t * pNtk );
static bool Abc_NtkCheckPos( Abc_Ntk_t * pNtk );
......
src/base/abc/abcDfs.c
......@@ -27,6 +27,7 @@
static void Abc_NtkDfs_rec( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes );
static void Abc_AigDfs_rec( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes );
static void Abc_NtkDfsReverse_rec( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes );
static void Abc_NtkNodeSupport_rec( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes );
static void Abc_DfsLevelizedTfo_rec( Abc_Obj_t * pNode, Vec_Vec_t * vLevels );
static int Abc_NtkGetLevelNum_rec( Abc_Obj_t * pNode );
static bool Abc_NtkIsAcyclic_rec( Abc_Obj_t * pNode );
......@@ -208,6 +209,68 @@ void Abc_NtkDfsReverse_rec( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes )
/**Function*************************************************************
Synopsis [Returns the set of CI nodes in the support of the given nodes.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Ptr_t * Abc_NtkNodeSupport( Abc_Ntk_t * pNtk, Abc_Obj_t ** ppNodes, int nNodes )
{
Vec_Ptr_t * vNodes;
int i;
// set the traversal ID
Abc_NtkIncrementTravId( pNtk );
// start the array of nodes
vNodes = Vec_PtrAlloc( 100 );
// go through the PO nodes and call for each of them
for ( i = 0; i < nNodes; i++ )
if ( Abc_ObjIsCo(ppNodes[i]) )
Abc_NtkNodeSupport_rec( Abc_ObjFanin0(ppNodes[i]), vNodes );
else
Abc_NtkNodeSupport_rec( ppNodes[i], vNodes );
return vNodes;
}
/**Function*************************************************************
Synopsis [Performs DFS for one node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkNodeSupport_rec( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes )
{
Abc_Obj_t * pFanin;
int i;
assert( !Abc_ObjIsNet(pNode) );
// if this node is already visited, skip
if ( Abc_NodeIsTravIdCurrent( pNode ) )
return;
// mark the node as visited
Abc_NodeSetTravIdCurrent( pNode );
// collect the CI
if ( Abc_ObjIsCi(pNode) )
{
Vec_PtrPush( vNodes, pNode );
return;
}
assert( Abc_ObjIsNode( pNode ) );
// visit the transitive fanin of the node
Abc_ObjForEachFanin( pNode, pFanin, i )
Abc_NtkNodeSupport_rec( Abc_ObjFanin0Ntk(pFanin), vNodes );
}
/**Function*************************************************************
Synopsis [Returns the DFS ordered array of logic nodes.]
Description [Collects only the internal nodes, leaving out CIs/COs.
......
src/base/abc/abcInt.h
......@@ -29,6 +29,8 @@
/// PARAMETERS ///
////////////////////////////////////////////////////////////////////////
#define ABC_NUM_STEPS 10
////////////////////////////////////////////////////////////////////////
/// STRUCTURE DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
......@@ -38,6 +40,15 @@
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
/*=== abcObj.c ==========================================================*/
extern Abc_Obj_t * Abc_ObjAlloc( Abc_Ntk_t * pNtk, Abc_ObjType_t Type );
extern void Abc_ObjRecycle( Abc_Obj_t * pObj );
extern void Abc_ObjAdd( Abc_Obj_t * pObj );
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
......
src/base/abc/abcNtk.c
......@@ -19,6 +19,7 @@
***********************************************************************/
#include "abc.h"
#include "abcInt.h"
#include "main.h"
#include "mio.h"
......@@ -26,8 +27,6 @@
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
#define ABC_NUM_STEPS 10
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFITIONS ///
////////////////////////////////////////////////////////////////////////
......@@ -400,6 +399,9 @@ Abc_Ntk_t * Abc_NtkCreateCone( Abc_Ntk_t * pNtk, Vec_Ptr_t * vRoots, Vec_Int_t *
pFinal = Abc_AigConst1( pNtkNew->pManFunc );
Vec_PtrForEachEntry( vRoots, pObj, i )
{
if ( Abc_ObjIsCo(pObj) )
pOther = Abc_ObjFanin0(pObj)->pCopy;
else
pOther = pObj->pCopy;
if ( Vec_IntEntry(vValues, i) == 0 )
pOther = Abc_ObjNot(pOther);
......@@ -477,7 +479,8 @@ void Abc_NtkDelete( Abc_Ntk_t * pNtk )
// free large fanout arrays
if ( pObj->vFanouts.nCap * 4 > LargePiece )
FREE( pObj->vFanouts.pArray );
// check that the other things are okay
// these flags should be always zero
// if this is not true, something is wrong somewhere
assert( pObj->fMarkA == 0 );
assert( pObj->fMarkB == 0 );
assert( pObj->fMarkC == 0 );
......
src/base/abc/abcObj.c
......@@ -19,6 +19,7 @@
***********************************************************************/
#include "abc.h"
#include "abcInt.h"
#include "main.h"
#include "mio.h"
......@@ -66,7 +67,13 @@ Abc_Obj_t * Abc_ObjAlloc( Abc_Ntk_t * pNtk, Abc_ObjType_t Type )
void Abc_ObjRecycle( Abc_Obj_t * pObj )
{
Abc_Ntk_t * pNtk = pObj->pNtk;
int LargePiece = (4 << ABC_NUM_STEPS);
// free large fanout arrays
if ( pObj->vFanouts.nCap * 4 > LargePiece )
FREE( pObj->vFanouts.pArray );
// clean the memory to make deleted object distinct from the live one
memset( pObj, 0, sizeof(Abc_Obj_t) );
// recycle the object
Extra_MmFixedEntryRecycle( pNtk->pMmObj, (char *)pObj );
}
......
src/base/abc/abcRefs.c
......@@ -26,6 +26,7 @@
static int Abc_NodeRefDeref( Abc_Obj_t * pNode, bool fReference, bool fLabel, Vec_Ptr_t * vNodes );
static int Abc_NodeRefDerefStop( Abc_Obj_t * pNode, bool fReference );
static int Abc_NodeDeref( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFITIONS ///
......@@ -108,6 +109,42 @@ int Abc_NodeMffcLabel( Abc_Obj_t * pNode )
/**Function*************************************************************
Synopsis [Returns the MFFC size.]
Description [Profiling shows that this procedure runs the same as
the above one, not faster.]
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NodeMffcLabelFast( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes )
{
Abc_Obj_t * pTemp;
int nConeSize, i;
assert( !Abc_ObjIsComplement( pNode ) );
assert( Abc_ObjIsNode( pNode ) );
if ( Abc_ObjFaninNum(pNode) == 0 )
return 0;
Vec_PtrClear( vNodes );
nConeSize = Abc_NodeDeref( pNode, vNodes );
// label the nodes with the current ID and ref their children
Vec_PtrForEachEntry( vNodes, pTemp, i )
{
Abc_NodeSetTravIdCurrent( pTemp );
if ( Abc_ObjIsCi(pTemp) )
continue;
Abc_ObjFanin0(pTemp)->vFanouts.nSize++;
Abc_ObjFanin1(pTemp)->vFanouts.nSize++;
}
return nConeSize;
}
/**Function*************************************************************
Synopsis [Collects the nodes in MFFC in the topological order.]
Description []
......@@ -184,6 +221,39 @@ int Abc_NodeRefDeref( Abc_Obj_t * pNode, bool fReference, bool fLabel, Vec_Ptr_t
Synopsis [References/references the node and returns MFFC size.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NodeDeref( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes )
{
Abc_Obj_t * pNode0, * pNode1;
int Counter;
// collect visited nodes
Vec_PtrPush( vNodes, pNode );
// skip the CI
if ( Abc_ObjIsCi(pNode) )
return 0;
// process the internal node
pNode0 = Abc_ObjFanin0(pNode);
pNode1 = Abc_ObjFanin1(pNode);
assert( pNode0->vFanouts.nSize > 0 );
assert( pNode1->vFanouts.nSize > 0 );
Counter = 1;
if ( --pNode0->vFanouts.nSize == 0 )
Counter += Abc_NodeDeref( pNode0, vNodes );
if ( --pNode1->vFanouts.nSize == 0 )
Counter += Abc_NodeDeref( pNode1, vNodes );
return Counter;
}
/**Function*************************************************************
Synopsis [References/references the node and returns MFFC size.]
Description [Stops at the complemented edges.]
SideEffects []
......
src/base/abc/abcUtil.c
......@@ -883,6 +883,101 @@ Vec_Ptr_t * Abc_NtkCollectObjects( Abc_Ntk_t * pNtk )
return vNodes;
}
/**Function*************************************************************
Synopsis [Returns the array of CI IDs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Int_t * Abc_NtkGetCiIds( Abc_Ntk_t * pNtk )
{
Vec_Int_t * vCiIds;
Abc_Obj_t * pObj;
int i;
vCiIds = Vec_IntAlloc( Abc_NtkCiNum(pNtk) );
Abc_NtkForEachCi( pNtk, pObj, i )
Vec_IntPush( vCiIds, pObj->Id );
return vCiIds;
}
/**Function*************************************************************
Synopsis [Puts the nodes into the DFS order and reassign their IDs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkReassignIds( Abc_Ntk_t * pNtk )
{
Vec_Ptr_t * vNodes;
Vec_Ptr_t * vObjsNew;
Abc_Obj_t * pNode, * pTemp;
Abc_Obj_t * pConst1 = NULL, * pReset = NULL;
int i, k;
// start the array of objects with new IDs
vObjsNew = Vec_PtrAlloc( pNtk->nObjs );
// put constant nodes (if present) first
if ( Abc_NtkIsStrash(pNtk) )
{
pConst1 = Abc_AigConst1(pNtk->pManFunc);
pConst1->Id = Vec_PtrSize( vObjsNew );
Vec_PtrPush( vObjsNew, pConst1 );
pReset = Abc_AigReset(pNtk->pManFunc);
pReset->Id = Vec_PtrSize( vObjsNew );
Vec_PtrPush( vObjsNew, pReset );
}
// put PI nodes next
Abc_NtkForEachPi( pNtk, pNode, i )
{
pNode->Id = Vec_PtrSize( vObjsNew );
Vec_PtrPush( vObjsNew, pNode );
}
// put PO nodes next
Abc_NtkForEachPo( pNtk, pNode, i )
{
pNode->Id = Vec_PtrSize( vObjsNew );
Vec_PtrPush( vObjsNew, pNode );
}
// put latches next
Abc_NtkForEachLatch( pNtk, pNode, i )
{
pNode->Id = Vec_PtrSize( vObjsNew );
Vec_PtrPush( vObjsNew, pNode );
}
// finally, internal nodes in the DFS order
vNodes = Abc_NtkDfs( pNtk, 1 );
Vec_PtrForEachEntry( vNodes, pNode, i )
{
if ( pNode == pReset || pNode == pConst1 )
continue;
pNode->Id = Vec_PtrSize( vObjsNew );
Vec_PtrPush( vObjsNew, pNode );
}
Vec_PtrFree( vNodes );
assert( Vec_PtrSize(vObjsNew) == pNtk->nObjs );
// update the fanin/fanout arrays
Abc_NtkForEachObj( pNtk, pNode, i )
{
Abc_ObjForEachFanin( pNode, pTemp, k )
pNode->vFanins.pArray[k].iFan = pTemp->Id;
Abc_ObjForEachFanout( pNode, pTemp, k )
pNode->vFanouts.pArray[k].iFan = pTemp->Id;
}
// replace the array of objs
Vec_PtrFree( pNtk->vObjs );
pNtk->vObjs = vObjsNew;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
......
src/base/abci/abcBalance.c
......@@ -25,8 +25,8 @@
////////////////////////////////////////////////////////////////////////
static void Abc_NtkBalancePerform( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkAig, bool fDuplicate );
static Abc_Obj_t * Abc_NodeBalance_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode, Vec_Vec_t * vStorage, bool fDuplicate );
static Vec_Ptr_t * Abc_NodeBalanceCone( Abc_Obj_t * pNode, Vec_Vec_t * vSuper, int fDuplicate );
static Abc_Obj_t * Abc_NodeBalance_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNode, Vec_Vec_t * vStorage, int Level, bool fDuplicate );
static Vec_Ptr_t * Abc_NodeBalanceCone( Abc_Obj_t * pNode, Vec_Vec_t * vSuper, int Level, int fDuplicate );
static int Abc_NodeBalanceCone_rec( Abc_Obj_t * pNode, Vec_Ptr_t * vSuper, bool fFirst, bool fDuplicate );
////////////////////////////////////////////////////////////////////////
......@@ -86,7 +86,7 @@ void Abc_NtkBalancePerform( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkAig, bool fDuplica
// set the level of PIs of AIG according to the arrival times of the old network
Abc_NtkSetNodeLevelsArrival( pNtk );
// allocate temporary storage for supergates
vStorage = Vec_VecStart( Abc_AigGetLevelNum(pNtk) + 1 );
vStorage = Vec_VecStart( 10 );
// perform balancing of POs
pProgress = Extra_ProgressBarStart( stdout, Abc_NtkCoNum(pNtk) );
Abc_NtkForEachCo( pNtk, pNode, i )
......@@ -94,7 +94,7 @@ void Abc_NtkBalancePerform( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkAig, bool fDuplica
Extra_ProgressBarUpdate( pProgress, i, NULL );
// strash the driver node
pDriver = Abc_ObjFanin0(pNode);
Abc_NodeBalance_rec( pNtkAig, pDriver, vStorage, fDuplicate );
Abc_NodeBalance_rec( pNtkAig, pDriver, vStorage, 0, fDuplicate );
}
Extra_ProgressBarStop( pProgress );
Vec_VecFree( vStorage );
......@@ -111,7 +111,7 @@ void Abc_NtkBalancePerform( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkAig, bool fDuplica
SeeAlso []
***********************************************************************/
Abc_Obj_t * Abc_NodeBalance_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNodeOld, Vec_Vec_t * vStorage, bool fDuplicate )
Abc_Obj_t * Abc_NodeBalance_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNodeOld, Vec_Vec_t * vStorage, int Level, bool fDuplicate )
{
Abc_Aig_t * pMan = pNtkNew->pManFunc;
Abc_Obj_t * pNodeNew, * pNode1, * pNode2;
......@@ -123,7 +123,7 @@ Abc_Obj_t * Abc_NodeBalance_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNodeOld, Vec_
return pNodeOld->pCopy;
assert( Abc_ObjIsNode(pNodeOld) );
// get the implication supergate
vSuper = Abc_NodeBalanceCone( pNodeOld, vStorage, fDuplicate );
vSuper = Abc_NodeBalanceCone( pNodeOld, vStorage, Level, fDuplicate );
if ( vSuper->nSize == 0 )
{ // it means that the supergate contains two nodes in the opposite polarity
pNodeOld->pCopy = Abc_ObjNot(Abc_AigConst1(pMan));
......@@ -132,9 +132,11 @@ Abc_Obj_t * Abc_NodeBalance_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNodeOld, Vec_
// for each old node, derive the new well-balanced node
for ( i = 0; i < vSuper->nSize; i++ )
{
pNodeNew = Abc_NodeBalance_rec( pNtkNew, Abc_ObjRegular(vSuper->pArray[i]), vStorage, fDuplicate );
pNodeNew = Abc_NodeBalance_rec( pNtkNew, Abc_ObjRegular(vSuper->pArray[i]), vStorage, Level + 1, fDuplicate );
vSuper->pArray[i] = Abc_ObjNotCond( pNodeNew, Abc_ObjIsComplement(vSuper->pArray[i]) );
}
if ( vSuper->nSize < 2 )
printf( "BUG!\n" );
// sort the new nodes by level in the decreasing order
Vec_PtrSort( vSuper, Abc_NodeCompareLevelsDecrease );
// balance the nodes
......@@ -149,6 +151,7 @@ Abc_Obj_t * Abc_NodeBalance_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNodeOld, Vec_
assert( pNodeOld->pCopy == NULL );
// mark the old node with the new node
pNodeOld->pCopy = vSuper->pArray[0];
vSuper->nSize = 0;
return pNodeOld->pCopy;
}
......@@ -165,17 +168,25 @@ Abc_Obj_t * Abc_NodeBalance_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNodeOld, Vec_
SeeAlso []
***********************************************************************/
Vec_Ptr_t * Abc_NodeBalanceCone( Abc_Obj_t * pNode, Vec_Vec_t * vStorage, int fDuplicate )
Vec_Ptr_t * Abc_NodeBalanceCone( Abc_Obj_t * pNode, Vec_Vec_t * vStorage, int Level, int fDuplicate )
{
Vec_Ptr_t * vNodes;
int RetValue, i;
assert( !Abc_ObjIsComplement(pNode) );
vNodes = Vec_VecEntry( vStorage, pNode->Level );
// extend the storage
if ( Vec_VecSize( vStorage ) <= Level )
Vec_VecPush( vStorage, Level, 0 );
// get the temporary array of nodes
vNodes = Vec_VecEntry( vStorage, Level );
Vec_PtrClear( vNodes );
// collect the nodes in the implication supergate
RetValue = Abc_NodeBalanceCone_rec( pNode, vNodes, 1, fDuplicate );
assert( vNodes->nSize > 0 );
assert( vNodes->nSize > 1 );
// unmark the visited nodes
for ( i = 0; i < vNodes->nSize; i++ )
Abc_ObjRegular((Abc_Obj_t *)vNodes->pArray[i])->fMarkB = 0;
// if we found the node and its complement in the same implication supergate,
// return empty set of nodes (meaning that we should use constant-0 node)
if ( RetValue == -1 )
vNodes->nSize = 0;
return vNodes;
......
src/base/abci/abcFraig.c
......@@ -26,7 +26,6 @@
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
extern Fraig_Man_t * Abc_NtkToFraig( Abc_Ntk_t * pNtk, Fraig_Params_t * pParams, int fAllNodes );
static Abc_Ntk_t * Abc_NtkFromFraig( Fraig_Man_t * pMan, Abc_Ntk_t * pNtk );
static Abc_Obj_t * Abc_NodeFromFraig_rec( Abc_Ntk_t * pNtkNew, Fraig_Node_t * pNodeFraig );
......@@ -83,13 +82,14 @@ Abc_Ntk_t * Abc_NtkFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes )
SeeAlso []
***********************************************************************/
Fraig_Man_t * Abc_NtkToFraig( Abc_Ntk_t * pNtk, Fraig_Params_t * pParams, int fAllNodes )
void * Abc_NtkToFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes )
{
Fraig_Man_t * pMan;
ProgressBar * pProgress;
Fraig_Node_t * pNodeFraig;
Vec_Ptr_t * vNodes;
Abc_Obj_t * pNode, * pConst1, * pReset;
int fInternal = ((Fraig_Params_t *)pParams)->fInternal;
int i;
assert( Abc_NtkIsStrash(pNtk) );
......@@ -106,11 +106,11 @@ Fraig_Man_t * Abc_NtkToFraig( Abc_Ntk_t * pNtk, Fraig_Params_t * pParams, int fA
// perform strashing
vNodes = Abc_AigDfs( pNtk, fAllNodes, 0 );
if ( !pParams->fInternal )
if ( !fInternal )
pProgress = Extra_ProgressBarStart( stdout, vNodes->nSize );
Vec_PtrForEachEntry( vNodes, pNode, i )
{
if ( !pParams->fInternal )
if ( !fInternal )
Extra_ProgressBarUpdate( pProgress, i, NULL );
if ( pNode == pConst1 )
pNodeFraig = Fraig_ManReadConst1(pMan);
......@@ -123,7 +123,7 @@ Fraig_Man_t * Abc_NtkToFraig( Abc_Ntk_t * pNtk, Fraig_Params_t * pParams, int fA
assert( pNode->pCopy == NULL );
pNode->pCopy = (Abc_Obj_t *)pNodeFraig;
}
if ( !pParams->fInternal )
if ( !fInternal )
Extra_ProgressBarStop( pProgress );
Vec_PtrFree( vNodes );
......
src/base/abci/abcMiter.c
......@@ -372,8 +372,8 @@ Abc_Ntk_t * Abc_NtkMiterForCofactors( Abc_Ntk_t * pNtk, int Out, int In1, int In
Synopsis [Checks the status of the miter.]
Description [Return 1 if the miter is sat for at least one output.
Return 0 if the miter is unsat for all its outputs. Returns -1 if the
Description [Return 0 if the miter is sat for at least one output.
Return 1 if the miter is unsat for all its outputs. Returns -1 if the
miter is undecided for some outputs.]
SideEffects []
......@@ -396,15 +396,15 @@ int Abc_NtkMiterIsConstant( Abc_Ntk_t * pMiter )
{
// if the miter is constant 1, return immediately
printf( "MITER IS CONSTANT 1!\n" );
return 1;
return 0;
}
}
// if the miter is undecided (or satisfiable), return immediately
else
return -1;
}
// return 0, meaning all outputs are constant zero
return 0;
// return 1, meaning all outputs are constant zero
return 1;
}
/**Function*************************************************************
......
src/base/abci/abcRefactor.c
......@@ -58,7 +58,7 @@ struct Abc_ManRef_t_
static void Abc_NtkManRefPrintStats( Abc_ManRef_t * p );
static Abc_ManRef_t * Abc_NtkManRefStart( int nNodeSizeMax, int nConeSizeMax, bool fUseDcs, bool fVerbose );
static void Abc_NtkManRefStop( Abc_ManRef_t * p );
static Dec_Graph_t * Abc_NodeRefactor( Abc_ManRef_t * p, Abc_Obj_t * pNode, Vec_Ptr_t * vFanins, bool fUseZeros, bool fUseDcs, bool fVerbose );
static Dec_Graph_t * Abc_NodeRefactor( Abc_ManRef_t * p, Abc_Obj_t * pNode, Vec_Ptr_t * vFanins, bool fUpdateLevel, bool fUseZeros, bool fUseDcs, bool fVerbose );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFITIONS ///
......@@ -80,7 +80,7 @@ static Dec_Graph_t * Abc_NodeRefactor( Abc_ManRef_t * p, Abc_Obj_t * pNode, Vec
SeeAlso []
***********************************************************************/
int Abc_NtkRefactor( Abc_Ntk_t * pNtk, int nNodeSizeMax, int nConeSizeMax, bool fUseZeros, bool fUseDcs, bool fVerbose )
int Abc_NtkRefactor( Abc_Ntk_t * pNtk, int nNodeSizeMax, int nConeSizeMax, bool fUpdateLevel, bool fUseZeros, bool fUseDcs, bool fVerbose )
{
ProgressBar * pProgress;
Abc_ManRef_t * pManRef;
......@@ -98,6 +98,8 @@ int Abc_NtkRefactor( Abc_Ntk_t * pNtk, int nNodeSizeMax, int nConeSizeMax, bool
pManCut = Abc_NtkManCutStart( nNodeSizeMax, nConeSizeMax, 2, 1000 );
pManRef = Abc_NtkManRefStart( nNodeSizeMax, nConeSizeMax, fUseDcs, fVerbose );
pManRef->vLeaves = Abc_NtkManCutReadCutLarge( pManCut );
// compute the reverse levels if level update is requested
if ( fUpdateLevel )
Abc_NtkStartReverseLevels( pNtk );
// resynthesize each node once
......@@ -121,13 +123,13 @@ clk = clock();
pManRef->timeCut += clock() - clk;
// evaluate this cut
clk = clock();
pFForm = Abc_NodeRefactor( pManRef, pNode, vFanins, fUseZeros, fUseDcs, fVerbose );
pFForm = Abc_NodeRefactor( pManRef, pNode, vFanins, fUpdateLevel, fUseZeros, fUseDcs, fVerbose );
pManRef->timeRes += clock() - clk;
if ( pFForm == NULL )
continue;
// acceptable replacement found, update the graph
clk = clock();
Dec_GraphUpdateNetwork( pNode, pFForm, pManRef->nLastGain );
Dec_GraphUpdateNetwork( pNode, pFForm, fUpdateLevel, pManRef->nLastGain );
pManRef->timeNtk += clock() - clk;
Dec_GraphFree( pFForm );
}
......@@ -140,7 +142,13 @@ pManRef->timeTotal = clock() - clkStart;
// delete the managers
Abc_NtkManCutStop( pManCut );
Abc_NtkManRefStop( pManRef );
// put the nodes into the DFS order and reassign their IDs
Abc_NtkReassignIds( pNtk );
// fix the levels
if ( fUpdateLevel )
Abc_NtkStopReverseLevels( pNtk );
else
Abc_NtkGetLevelNum( pNtk );
// check
if ( !Abc_NtkCheck( pNtk ) )
{
......@@ -161,7 +169,7 @@ pManRef->timeTotal = clock() - clkStart;
SeeAlso []
***********************************************************************/
Dec_Graph_t * Abc_NodeRefactor( Abc_ManRef_t * p, Abc_Obj_t * pNode, Vec_Ptr_t * vFanins, bool fUseZeros, bool fUseDcs, bool fVerbose )
Dec_Graph_t * Abc_NodeRefactor( Abc_ManRef_t * p, Abc_Obj_t * pNode, Vec_Ptr_t * vFanins, bool fUpdateLevel, bool fUseZeros, bool fUseDcs, bool fVerbose )
{
int fVeryVerbose = 0;
Abc_Obj_t * pFanin;
......@@ -169,6 +177,9 @@ Dec_Graph_t * Abc_NodeRefactor( Abc_ManRef_t * p, Abc_Obj_t * pNode, Vec_Ptr_t *
DdNode * bNodeFunc;
int nNodesSaved, nNodesAdded, i, clk;
char * pSop;
int Required;
Required = fUpdateLevel? Abc_NodeReadRequiredLevel(pNode) : ABC_INFINITY;
p->nNodesConsidered++;
......@@ -239,7 +250,7 @@ p->timeFact += clock() - clk;
// detect how many new nodes will be added (while taking into account reused nodes)
clk = clock();
nNodesAdded = Dec_GraphToNetworkCount( pNode, pFForm, nNodesSaved, Abc_NodeReadRequiredLevel(pNode) );
nNodesAdded = Dec_GraphToNetworkCount( pNode, pFForm, nNodesSaved, Required );
p->timeEval += clock() - clk;
// quit if there is no improvement
if ( nNodesAdded == -1 || nNodesAdded == nNodesSaved && !fUseZeros )
......
src/base/abci/abcRenode.c
......@@ -486,7 +486,7 @@ void Abc_NtkRenodeSetBoundsCnf( Abc_Ntk_t * pNtk )
Abc_ObjFanin1(pNode)->fMarkA == 0 )
nMuxes++;
}
printf( "The number of MUXes detected = %d (%5.2f %% of logic).\n", nMuxes, 300.0*nMuxes/Abc_NtkNodeNum(pNtk) );
// printf( "The number of MUXes detected = %d (%5.2f %% of logic).\n", nMuxes, 300.0*nMuxes/Abc_NtkNodeNum(pNtk) );
}
/**Function*************************************************************
......
src/base/abci/abcRewrite.c
......@@ -50,7 +50,7 @@ static void Abc_NodePrintCuts( Abc_Obj_t * pNode );
SeeAlso []
***********************************************************************/
int Abc_NtkRewrite( Abc_Ntk_t * pNtk, int fUseZeros, int fVerbose )
int Abc_NtkRewrite( Abc_Ntk_t * pNtk, int fUpdateLevel, int fUseZeros, int fVerbose )
{
int fDrop = 0;
ProgressBar * pProgress;
......@@ -67,6 +67,8 @@ int Abc_NtkRewrite( Abc_Ntk_t * pNtk, int fUseZeros, int fVerbose )
pManRwr = Rwr_ManStart( 0 );
if ( pManRwr == NULL )
return 0;
// compute the reverse levels if level update is requested
if ( fUpdateLevel )
Abc_NtkStartReverseLevels( pNtk );
// start the cut manager
clk = clock();
......@@ -90,14 +92,16 @@ Rwr_ManAddTimeCuts( pManRwr, clock() - clk );
if ( Abc_ObjFanoutNum(pNode) > 1000 )
continue;
// for each cut, try to resynthesize it
nGain = Rwr_NodeRewrite( pManRwr, pManCut, pNode, fUseZeros );
nGain = Rwr_NodeRewrite( pManRwr, pManCut, pNode, fUpdateLevel, fUseZeros );
if ( nGain > 0 || nGain == 0 && fUseZeros )
{
Dec_Graph_t * pGraph = Rwr_ManReadDecs(pManRwr);
int fCompl = Rwr_ManReadCompl(pManRwr);
// complement the FF if needed
if ( fCompl ) Dec_GraphComplement( pGraph );
Dec_GraphUpdateNetwork( pNode, pGraph, nGain );
clk = clock();
Dec_GraphUpdateNetwork( pNode, pGraph, fUpdateLevel, nGain );
Rwr_ManAddTimeUpdate( pManRwr, clock() - clk );
if ( fCompl ) Dec_GraphComplement( pGraph );
}
}
......@@ -110,7 +114,13 @@ Rwr_ManAddTimeTotal( pManRwr, clock() - clkStart );
Rwr_ManStop( pManRwr );
Cut_ManStop( pManCut );
pNtk->pManCut = NULL;
// put the nodes into the DFS order and reassign their IDs
Abc_NtkReassignIds( pNtk );
// fix the levels
if ( fUpdateLevel )
Abc_NtkStopReverseLevels( pNtk );
else
Abc_NtkGetLevelNum( pNtk );
// check
if ( !Abc_NtkCheck( pNtk ) )
{
......
src/base/abci/abcSat.c
......@@ -35,18 +35,18 @@ static void Abc_NodeAddClausesTop( solver * pSat, Abc_Obj_t * pNode, Vec_Int_t *
Synopsis [Attempts to solve the miter using an internal SAT solver.]
Description [Returns 1 if the miter is SAT.]
Description [Returns -1 if timed out; 0 if SAT; 1 if UNSAT.]
SideEffects []
SeeAlso []
***********************************************************************/
bool Abc_NtkMiterSat( Abc_Ntk_t * pNtk, int fVerbose )
int Abc_NtkMiterSat( Abc_Ntk_t * pNtk, int nSeconds, int fVerbose )
{
solver * pSat;
lbool status;
int clk;
int RetValue, clk;
assert( Abc_NtkIsBddLogic(pNtk) );
assert( Abc_NtkLatchNum(pNtk) == 0 );
......@@ -57,20 +57,18 @@ bool Abc_NtkMiterSat( Abc_Ntk_t * pNtk, int fVerbose )
// load clauses into the solver
clk = clock();
pSat = Abc_NtkMiterSatCreate( pNtk );
// printf( "Created SAT problem with %d variable and %d clauses. ",
// solver_nvars(pSat), solver_nclauses(pSat) );
// printf( "Created SAT problem with %d variable and %d clauses. ", solver_nvars(pSat), solver_nclauses(pSat) );
// PRT( "Time", clock() - clk );
// simplify the problem
clk = clock();
status = solver_simplify(pSat);
// printf( "Simplified the problem to %d variables and %d clauses. ",
// solver_nvars(pSat), solver_nclauses(pSat) );
// printf( "Simplified the problem to %d variables and %d clauses. ", solver_nvars(pSat), solver_nclauses(pSat) );
// PRT( "Time", clock() - clk );
if ( status == l_False )
{
solver_delete( pSat );
printf( "The problem is UNSAT after simplification.\n" );
printf( "The problem is UNSATISFIABLE after simplification.\n" );
return 0;
}
......@@ -78,15 +76,36 @@ bool Abc_NtkMiterSat( Abc_Ntk_t * pNtk, int fVerbose )
clk = clock();
if ( fVerbose )
pSat->verbosity = 1;
status = solver_solve( pSat, NULL, NULL );
// if ( fVerbose )
// {
printf( "The problem is %5s. ", (status == l_True)? "SAT" : "UNSAT" );
PRT( "SAT solver time", clock() - clk );
// }
status = solver_solve( pSat, NULL, NULL, nSeconds );
if ( status == l_Undef )
{
// printf( "The problem timed out.\n" );
RetValue = -1;
}
else if ( status == l_True )
{
// printf( "The problem is SATISFIABLE.\n" );
RetValue = 0;
}
else if ( status == l_False )
{
// printf( "The problem is UNSATISFIABLE.\n" );
RetValue = 1;
}
else
assert( 0 );
// PRT( "SAT solver time", clock() - clk );
// if the problem is SAT, get the counterexample
if ( status == l_True )
{
Vec_Int_t * vCiIds = Abc_NtkGetCiIds( pNtk );
pNtk->pModel = solver_get_model( pSat, vCiIds->pArray, vCiIds->nSize );
Vec_IntFree( vCiIds );
}
// free the solver
solver_delete( pSat );
return status == l_True;
return RetValue;
}
/**Function*************************************************************
......
src/base/abci/abcSweep.c
......@@ -25,8 +25,6 @@
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
extern Fraig_Man_t * Abc_NtkToFraig( Abc_Ntk_t * pNtk, Fraig_Params_t * pParams, int fAllNodes );
static stmm_table * Abc_NtkFraigEquiv( Fraig_Man_t * p, Abc_Ntk_t * pNtk, int fUseInv, bool fVerbose );
static void Abc_NtkFraigTransform( Abc_Ntk_t * pNtk, stmm_table * tEquiv, int fUseInv, bool fVerbose );
static void Abc_NtkFraigMergeClassMapped( Abc_Ntk_t * pNtk, Abc_Obj_t * pChain, int fVerbose, int fUseInv );
......
src/base/abcs/abcSeq.c
......@@ -112,7 +112,7 @@ Abc_Ntk_t * Abc_NtkAigToSeq( Abc_Ntk_t * pNtk )
if ( Abc_ObjIsCi(pFaninNew) || !Abc_NodeIsConst(pFaninNew) )
continue;
pConst = Abc_ObjNotCond( Abc_AigConst1(pManNew), Abc_ObjFaninC0(pLatch) );
Abc_AigReplace( pManNew, pLatch, pConst );
Abc_AigReplace( pManNew, pLatch, pConst, 0 );
fChange = 1;
Counter++;
}
......
src/base/main/main.c
......@@ -20,6 +20,9 @@
#include "mainInt.h"
// this line should be included in the library project
#define _LIB
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
......@@ -30,6 +33,8 @@ static int TypeCheck( Abc_Frame_t * pAbc, char * s);
/// FUNCTION DEFITIONS ///
////////////////////////////////////////////////////////////////////////
#ifndef _LIB
/**Function*************************************************************
Synopsis [The main() procedure.]
......@@ -64,8 +69,8 @@ int main( int argc, char * argv[] )
fInitRead = 0;
fFinalWrite = 0;
sInFile = sOutFile = NULL;
sprintf( sReadCmd, "read_blif_mv" );
sprintf( sWriteCmd, "write_blif_mv" );
sprintf( sReadCmd, "read" );
sprintf( sWriteCmd, "write" );
util_getopt_reset();
while ((c = util_getopt(argc, argv, "c:hf:F:o:st:T:x")) != EOF) {
......@@ -226,6 +231,62 @@ usage:
return 1;
}
#endif
/**Function*************************************************************
Synopsis [Initialization procedure for the library project.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_Start()
{
Abc_Frame_t * pAbc;
// added to detect memory leaks:
#ifdef _DEBUG
_CrtSetDbgFlag( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
#endif
// get global frame (singleton pattern)
// will be initialized on first call
pAbc = Abc_FrameGetGlobalFrame();
// source the resource file
Abc_UtilsSource( pAbc );
}
/**Function*************************************************************
Synopsis [Deallocation procedure for the library project.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_Stop()
{
Abc_Frame_t * pAbc;
int fStatus = 0;
// if the memory should be freed, quit packages
if ( fStatus == -2 )
{
pAbc = Abc_FrameGetGlobalFrame();
// perform uninitializations
Abc_FrameEnd( pAbc );
// stop the framework
Abc_FrameDeallocate( pAbc );
}
}
/**Function********************************************************************
......
src/base/main/main.h
......@@ -73,7 +73,11 @@ typedef struct Abc_Frame_t_ Abc_Frame_t;
/// FUNCTION DEFITIONS ///
////////////////////////////////////////////////////////////////////////
/*=== mvFrame.c ===========================================================*/
/*=== main.c ===========================================================*/
extern void Abc_Start();
extern void Abc_Stop();
/*=== mainFrame.c ===========================================================*/
extern Abc_Ntk_t * Abc_FrameReadNet( Abc_Frame_t * p );
extern FILE * Abc_FrameReadOut( Abc_Frame_t * p );
extern FILE * Abc_FrameReadErr( Abc_Frame_t * p );
......
src/opt/dec/dec.h
......@@ -97,7 +97,7 @@ struct Dec_Man_t_
/*=== decAbc.c ========================================================*/
extern Abc_Obj_t * Dec_GraphToNetwork( Abc_Aig_t * pMan, Dec_Graph_t * pGraph );
extern int Dec_GraphToNetworkCount( Abc_Obj_t * pRoot, Dec_Graph_t * pGraph, int NodeMax, int LevelMax );
extern void Dec_GraphUpdateNetwork( Abc_Obj_t * pRoot, Dec_Graph_t * pGraph, int nGain );
extern void Dec_GraphUpdateNetwork( Abc_Obj_t * pRoot, Dec_Graph_t * pGraph, bool fUpdateLevel, int nGain );
/*=== decFactor.c ========================================================*/
extern Dec_Graph_t * Dec_Factor( char * pSop );
/*=== decMan.c ========================================================*/
......
src/opt/dec/decAbc.c
......@@ -126,7 +126,7 @@ int Dec_GraphToNetworkCount( Abc_Obj_t * pRoot, Dec_Graph_t * pGraph, int NodeMa
else if ( Abc_ObjRegular(pAnd) == Abc_ObjRegular(pAnd1) )
LevelNew = (int)Abc_ObjRegular(pAnd1)->Level;
LevelOld = (int)Abc_ObjRegular(pAnd)->Level;
assert( LevelNew == LevelOld );
// assert( LevelNew == LevelOld );
}
if ( LevelNew > LevelMax )
return -1;
......@@ -148,7 +148,7 @@ int Dec_GraphToNetworkCount( Abc_Obj_t * pRoot, Dec_Graph_t * pGraph, int NodeMa
SeeAlso []
***********************************************************************/
void Dec_GraphUpdateNetwork( Abc_Obj_t * pRoot, Dec_Graph_t * pGraph, int nGain )
void Dec_GraphUpdateNetwork( Abc_Obj_t * pRoot, Dec_Graph_t * pGraph, bool fUpdateLevel, int nGain )
{
Abc_Obj_t * pRootNew;
Abc_Ntk_t * pNtk = pRoot->pNtk;
......@@ -157,7 +157,7 @@ void Dec_GraphUpdateNetwork( Abc_Obj_t * pRoot, Dec_Graph_t * pGraph, int nGain
// create the new structure of nodes
pRootNew = Dec_GraphToNetwork( pNtk->pManFunc, pGraph );
// remove the old nodes
Abc_AigReplace( pNtk->pManFunc, pRoot, pRootNew );
Abc_AigReplace( pNtk->pManFunc, pRoot, pRootNew, fUpdateLevel );
// compare the gains
nNodesNew = Abc_NtkNodeNum(pNtk);
assert( nGain <= nNodesOld - nNodesNew );
......
src/opt/rwr/rwr.h
......@@ -49,6 +49,7 @@ struct Rwr_Man_t_
char * pPhases; // canonical phases
char * pPerms; // canonical permutations
unsigned char * pMap; // mapping of functions into class numbers
unsigned short * pMapInv; // mapping of classes into functions
char * pPractical; // practical NPN classes
char ** pPerms4; // four-var permutations
// node space
......@@ -67,6 +68,7 @@ struct Rwr_Man_t_
Vec_Ptr_t * vFanins; // the fanins array (temporary)
Vec_Ptr_t * vFaninsCur; // the fanins array (temporary)
Vec_Int_t * vLevNums; // the array of levels (temporary)
Vec_Ptr_t * vNodesTemp; // the nodes in MFFC (temporary)
// node statistics
int nNodesConsidered;
int nNodesRewritten;
......@@ -80,6 +82,8 @@ struct Rwr_Man_t_
int timeCut;
int timeRes;
int timeEval;
int timeMffc;
int timeUpdate;
int timeTotal;
};
......@@ -114,7 +118,7 @@ static inline Rwr_Node_t * Rwr_NotCond( Rwr_Node_t * p, int c ) { return (Rwr_N
/*=== rwrDec.c ========================================================*/
extern void Rwr_ManPreprocess( Rwr_Man_t * p );
/*=== rwrEva.c ========================================================*/
extern int Rwr_NodeRewrite( Rwr_Man_t * p, Cut_Man_t * pManCut, Abc_Obj_t * pNode, int fUseZeros );
extern int Rwr_NodeRewrite( Rwr_Man_t * p, Cut_Man_t * pManCut, Abc_Obj_t * pNode, int fUpdateLevel, int fUseZeros );
/*=== rwrLib.c ========================================================*/
extern void Rwr_ManPrecompute( Rwr_Man_t * p );
extern Rwr_Node_t * Rwr_ManAddVar( Rwr_Man_t * p, unsigned uTruth, int fPrecompute );
......@@ -128,6 +132,7 @@ extern void Rwr_ManPrintStats( Rwr_Man_t * p );
extern void * Rwr_ManReadDecs( Rwr_Man_t * p );
extern int Rwr_ManReadCompl( Rwr_Man_t * p );
extern void Rwr_ManAddTimeCuts( Rwr_Man_t * p, int Time );
extern void Rwr_ManAddTimeUpdate( Rwr_Man_t * p, int Time );
extern void Rwr_ManAddTimeTotal( Rwr_Man_t * p, int Time );
/*=== rwrPrint.c ========================================================*/
extern void Rwr_ManPrint( Rwr_Man_t * p );
......
src/opt/rwr/rwrDec.c
......@@ -49,6 +49,8 @@ void Rwr_ManPreprocess( Rwr_Man_t * p )
Rwr_Node_t * pNode;
int i, k;
// put the nodes into the structure
p->pMapInv = ALLOC( unsigned short, 222 );
memset( p->pMapInv, 0, sizeof(unsigned short) * 222 );
p->vClasses = Vec_VecStart( 222 );
for ( i = 0; i < p->nFuncs; i++ )
{
......@@ -60,6 +62,7 @@ void Rwr_ManPreprocess( Rwr_Man_t * p )
assert( pNode->uTruth == p->pTable[i]->uTruth );
assert( p->pMap[pNode->uTruth] >= 0 && p->pMap[pNode->uTruth] < 222 );
Vec_VecPush( p->vClasses, p->pMap[pNode->uTruth], pNode );
p->pMapInv[ p->pMap[pNode->uTruth] ] = p->puCanons[pNode->uTruth];
}
}
// compute decomposition forms for each node and verify them
......
src/opt/rwr/rwrEva.c
......@@ -49,7 +49,7 @@ static Dec_Graph_t * Rwr_CutEvaluate( Rwr_Man_t * p, Abc_Obj_t * pRoot, Cut_Cut_
SeeAlso []
***********************************************************************/
int Rwr_NodeRewrite( Rwr_Man_t * p, Cut_Man_t * pManCut, Abc_Obj_t * pNode, int fUseZeros )
int Rwr_NodeRewrite( Rwr_Man_t * p, Cut_Man_t * pManCut, Abc_Obj_t * pNode, int fUpdateLevel, int fUseZeros )
{
int fVeryVerbose = 0;
Dec_Graph_t * pGraph;
......@@ -63,7 +63,7 @@ int Rwr_NodeRewrite( Rwr_Man_t * p, Cut_Man_t * pManCut, Abc_Obj_t * pNode, int
p->nNodesConsidered++;
// get the required times
Required = Abc_NodeReadRequiredLevel( pNode );
Required = fUpdateLevel? Abc_NodeReadRequiredLevel(pNode) : ABC_INFINITY;
// get the node's cuts
clk = clock();
pCut = (Cut_Cut_t *)Abc_NodeGetCutsRecursive( pManCut, pNode );
......@@ -98,6 +98,7 @@ clk = clock();
}
p->nCutsGood++;
clk2 = clock();
// mark the fanin boundary
Vec_PtrForEachEntry( p->vFaninsCur, pFanin, i )
Abc_ObjRegular(pFanin)->vFanouts.nSize++;
......@@ -107,6 +108,7 @@ clk = clock();
// unmark the fanin boundary
Vec_PtrForEachEntry( p->vFaninsCur, pFanin, i )
Abc_ObjRegular(pFanin)->vFanouts.nSize--;
p->timeMffc += clock() - clk2;
// evaluate the cut
clk2 = clock();
......
src/opt/rwr/rwrMan.c
......@@ -75,6 +75,7 @@ clk = clock();
p->vLevNums = Vec_IntAlloc( 50 );
p->vFanins = Vec_PtrAlloc( 50 );
p->vFaninsCur = Vec_PtrAlloc( 50 );
p->vNodesTemp = Vec_PtrAlloc( 50 );
if ( fPrecompute )
{ // precompute subgraphs
Rwr_ManPrecompute( p );
......@@ -112,11 +113,13 @@ void Rwr_ManStop( Rwr_Man_t * p )
Dec_GraphFree( (Dec_Graph_t *)pNode->pNext );
}
if ( p->vClasses ) Vec_VecFree( p->vClasses );
Vec_PtrFree( p->vNodesTemp );
Vec_PtrFree( p->vForest );
Vec_IntFree( p->vLevNums );
Vec_PtrFree( p->vFanins );
Vec_PtrFree( p->vFaninsCur );
Extra_MmFixedStop( p->pMmNode, 0 );
FREE( p->pMapInv );
free( p->pTable );
free( p->pPractical );
free( p->pPerms4 );
......@@ -151,14 +154,16 @@ void Rwr_ManPrintStats( Rwr_Man_t * p )
PRT( "Start ", p->timeStart );
PRT( "Cuts ", p->timeCut );
PRT( "Resynthesis ", p->timeRes );
PRT( " Mffc ", p->timeMffc );
PRT( " Eval ", p->timeEval );
PRT( "Update ", p->timeUpdate );
PRT( "TOTAL ", p->timeTotal );
/*
printf( "The scores are : " );
printf( "The scores are:\n" );
for ( i = 0; i < 222; i++ )
if ( p->nScores[i] > 0 )
printf( "%d=%d ", i, p->nScores[i] );
printf( "%3d = %8d canon = %5d\n", i, p->nScores[i], p->pMapInv[i] );
printf( "\n" );
*/
}
......@@ -222,6 +227,22 @@ void Rwr_ManAddTimeCuts( Rwr_Man_t * p, int Time )
SeeAlso []
***********************************************************************/
void Rwr_ManAddTimeUpdate( Rwr_Man_t * p, int Time )
{
p->timeUpdate += Time;
}
/**Function*************************************************************
Synopsis [Stops the resynthesis manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Rwr_ManAddTimeTotal( Rwr_Man_t * p, int Time )
{
p->timeTotal += Time;
......
src/opt/rwr/rwrPrint.c
......@@ -79,6 +79,33 @@ void Rwr_GetBushVolume( Rwr_Man_t * p, int Entry, int * pVolume, int * pnFuncs )
/**Function*************************************************************
Synopsis [Adds the node to the end of the list.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Rwr_GetBushSumOfVolumes( Rwr_Man_t * p, int Entry )
{
Rwr_Node_t * pNode;
int Volume, VolumeTotal = 0;
for ( pNode = p->pTable[Entry]; pNode; pNode = pNode->pNext )
{
if ( pNode->uTruth != p->puCanons[pNode->uTruth] )
continue;
Volume = 0;
Rwr_ManIncTravId( p );
Rwr_Trav2_rec( p, pNode, &Volume );
VolumeTotal += Volume;
}
return VolumeTotal;
}
/**Function*************************************************************
Synopsis [Prints one rwr node.]
Description []
......@@ -221,7 +248,7 @@ void Rwr_ManPrint( Rwr_Man_t * p )
continue;
fprintf( pFile, "\nClass %3d. Func %6d. ", p->pMap[i], Counter++ );
Rwr_GetBushVolume( p, i, &Volume, &nFuncs );
fprintf( pFile, "Functions = %2d. Volume = %2d. ", nFuncs, Volume );
fprintf( pFile, "Roots = %3d. Vol = %3d. Sum = %3d. ", nFuncs, Volume, Rwr_GetBushSumOfVolumes(p, i) );
uTruth = i;
Extra_PrintBinary( pFile, &uTruth, 16 );
fprintf( pFile, "\n" );
......
src/opt/sim/simSupp.c
......@@ -35,8 +35,6 @@ static void Sim_UtilAssignFromFifo( Sim_Man_t * p );
static void Sim_SolveTargetsUsingSat( Sim_Man_t * p, int nCounters );
static int Sim_SolveSuppModelVerify( Abc_Ntk_t * pNtk, int * pModel, int Input, int Output );
extern Fraig_Man_t * Abc_NtkToFraig( Abc_Ntk_t * pNtk, Fraig_Params_t * pParams, int fAllNodes );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFITIONS ///
////////////////////////////////////////////////////////////////////////
......@@ -469,6 +467,7 @@ void Sim_SolveTargetsUsingSat( Sim_Man_t * p, int Limit )
// transform the miter into a fraig
Fraig_ParamsSetDefault( &Params );
Params.nSeconds = ABC_INFINITY;
Params.fInternal = 1;
clk = clock();
pMan = Abc_NtkToFraig( pMiter, &Params, 0 );
......
src/opt/sim/simSymSat.c
......@@ -26,8 +26,7 @@
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
extern int Sim_SymmsSatProveOne( Sym_Man_t * p, int Out, int Var1, int Var2, unsigned * pPattern );
extern Fraig_Man_t * Abc_NtkToFraig( Abc_Ntk_t * pNtk, Fraig_Params_t * pParams, int fAllNodes );
static int Sim_SymmsSatProveOne( Sym_Man_t * p, int Out, int Var1, int Var2, unsigned * pPattern );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFITIONS ///
......@@ -145,6 +144,7 @@ int Sim_SymmsSatProveOne( Sym_Man_t * p, int Out, int Var1, int Var2, unsigned *
Params.fInternal = 1;
Params.nPatsRand = 512;
Params.nPatsDyna = 512;
Params.nSeconds = ABC_INFINITY;
clk = clock();
pMan = Abc_NtkToFraig( pMiter, &Params, 0 );
......
src/sat/asat/added.c
......@@ -119,6 +119,30 @@ void Asat_ClauseWriteDimacs( FILE * pFile, clause * pC, bool fIncrement )
fprintf( pFile, "\n" );
}
/**Function*************************************************************
Synopsis [Returns a counter-example.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int * solver_get_model( solver * p, int * pVars, int nVars )
{
int * pModel;
int i;
pModel = ALLOC( int, nVars );
for ( i = 0; i < nVars; i++ )
{
assert( pVars[i] >= 0 && pVars[i] < p->size );
pModel[i] = (int)(p->model.ptr[pVars[i]] == (void *)l_True);
}
return pModel;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
......
src/sat/asat/solver.c
......@@ -22,6 +22,7 @@ OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWA
#include <stdio.h>
#include <assert.h>
#include <math.h>
#include <time.h>
#include "solver.h"
......@@ -1055,13 +1056,14 @@ bool solver_simplify(solver* s)
}
bool solver_solve(solver* s, lit* begin, lit* end)
int solver_solve(solver* s, lit* begin, lit* end, int nSeconds)
{
double nof_conflicts = 100;
double nof_learnts = solver_nclauses(s) / 3;
lbool status = l_Undef;
lbool* values = s->assigns;
lit* i;
int timeStart = clock();
for (i = begin; i < end; i++)
if ((lit_sign(*i) ? -values[lit_var(*i)] : values[lit_var(*i)]) == l_False || (assume(s,*i), solver_propagate(s) != 0)){
......@@ -1096,12 +1098,15 @@ bool solver_solve(solver* s, lit* begin, lit* end)
status = solver_search(s,(int)nof_conflicts, (int)nof_learnts);
nof_conflicts *= 1.5;
nof_learnts *= 1.1;
// if the runtime limit is exceeded, quit the restart loop
if ( clock() - timeStart >= nSeconds * CLOCKS_PER_SEC )
break;
}
if (s->verbosity >= 1)
printf("==============================================================================\n");
solver_canceluntil(s,0);
return status != l_False;
return status;
}
......
src/sat/asat/solver.h
......@@ -69,7 +69,8 @@ extern void solver_delete(solver* s);
extern bool solver_addclause(solver* s, lit* begin, lit* end);
extern bool solver_simplify(solver* s);
extern bool solver_solve(solver* s, lit* begin, lit* end);
extern int solver_solve(solver* s, lit* begin, lit* end, int nSeconds);
extern int * solver_get_model( solver * p, int * pVars, int nVars );
extern int solver_nvars(solver* s);
extern int solver_nclauses(solver* s);
......
src/sat/csat/csat_apis.c
......@@ -24,6 +24,8 @@
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
#define ABC_DEFAULT_TIMEOUT 60 // 60 seconds
struct CSAT_ManagerStruct_t
{
// information about the problem
......@@ -33,7 +35,8 @@ struct CSAT_ManagerStruct_t
Abc_Ntk_t * pTarget; // the AIG representing the target
char * pDumpFileName; // the name of the file to dump the target network
// solving parameters
int mode; // 0 = baseline; 1 = resource-aware fraiging
int mode; // 0 = brute-force SAT; 1 = resource-aware FRAIG
int nSeconds; // time limit for pure SAT solving
Fraig_Params_t Params; // the set of parameters to call FRAIG package
// information about the target
int nog; // the numbers of gates in the target
......@@ -44,11 +47,9 @@ struct CSAT_ManagerStruct_t
};
static CSAT_Target_ResultT * CSAT_TargetResAlloc( int nVars );
static void CSAT_TargetResFree( CSAT_Target_ResultT * p );
static char * CSAT_GetNodeName( CSAT_Manager mng, Abc_Obj_t * pNode );
// some external procedures
extern Fraig_Man_t * Abc_NtkToFraig( Abc_Ntk_t * pNtk, Fraig_Params_t * pParams, int fAllNodes );
extern int Io_WriteBench( Abc_Ntk_t * pNtk, char * FileName );
////////////////////////////////////////////////////////////////////////
......@@ -77,6 +78,7 @@ CSAT_Manager CSAT_InitManager()
mng->tNode2Name = stmm_init_table(stmm_ptrcmp, stmm_ptrhash);
mng->vNodes = Vec_PtrAlloc( 100 );
mng->vValues = Vec_IntAlloc( 100 );
mng->nSeconds = ABC_DEFAULT_TIMEOUT;
return mng;
}
......@@ -107,7 +109,7 @@ void CSAT_QuitManager( CSAT_Manager mng )
Synopsis [Sets solver options for learning.]
Description [0 = baseline; 1 = resource-aware solving.]
Description [0 = brute-force SAT; 1 = resource-aware FRAIG.]
SideEffects []
......@@ -118,11 +120,11 @@ void CSAT_SetSolveOption( CSAT_Manager mng, enum CSAT_OptionT option )
{
mng->mode = option;
if ( option == 0 )
printf( "CSAT_SetSolveOption: Setting baseline solving mode.\n" );
printf( "CSAT_SetSolveOption: Setting brute-force SAT mode.\n" );
else if ( option == 1 )
printf( "CSAT_SetSolveOption: Setting resource-aware solving mode.\n" );
printf( "CSAT_SetSolveOption: Setting resource-aware FRAIG mode.\n" );
else
printf( "CSAT_SetSolveOption: Unknown option.\n" );
printf( "CSAT_SetSolveOption: Unknown solving mode.\n" );
}
......@@ -280,7 +282,7 @@ int CSAT_Check_Integrity( CSAT_Manager mng )
assert( Abc_NtkLatchNum(pNtk) == 0 );
// make sure everything is okay with the network structure
if ( !Abc_NtkCheckRead( pNtk ) )
if ( !Abc_NtkDoCheck( pNtk ) )
{
printf( "CSAT_Check_Integrity: The internal network check has failed.\n" );
return 0;
......@@ -311,7 +313,7 @@ int CSAT_Check_Integrity( CSAT_Manager mng )
***********************************************************************/
void CSAT_SetTimeLimit( CSAT_Manager mng, int runtime )
{
printf( "CSAT_SetTimeLimit: The resource limit is not implemented (warning).\n" );
mng->nSeconds = runtime;
}
/**Function*************************************************************
......@@ -458,7 +460,8 @@ void CSAT_SolveInit( CSAT_Manager mng )
memset( pParams, 0, sizeof(Fraig_Params_t) );
pParams->nPatsRand = nWordsMin * 32; // the number of words of random simulation info
pParams->nPatsDyna = nWordsMin * 32; // the number of words of dynamic simulation info
pParams->nBTLimit = 99; // the max number of backtracks to perform at a node
pParams->nBTLimit = 10; // the max number of backtracks to perform at a node
pParams->nSeconds = mng->nSeconds; // the time out for the final proof
pParams->fFuncRed = mng->mode; // performs only one level hashing
pParams->fFeedBack = 1; // enables solver feedback
pParams->fDist1Pats = 1; // enables distance-1 patterns
......@@ -498,6 +501,7 @@ void CSAT_AnalyzeTargets( CSAT_Manager mng )
enum CSAT_StatusT CSAT_Solve( CSAT_Manager mng )
{
Fraig_Man_t * pMan;
Abc_Ntk_t * pCnf;
int * pModel;
int RetValue, i;
......@@ -505,13 +509,45 @@ enum CSAT_StatusT CSAT_Solve( CSAT_Manager mng )
if ( mng->pTarget == NULL )
{ printf( "CSAT_Solve: Target network is not derived by CSAT_SolveInit().\n" ); return UNDETERMINED; }
// optimizations of the target go here
// for example, to enable one pass of rewriting, uncomment this line
// Abc_NtkRewrite( mng->pTarget, 0, 1, 0 );
if ( mng->mode == 0 ) // brute-force SAT
{
// transfor the AIG into a logic network for efficient CNF construction
pCnf = Abc_NtkRenode( mng->pTarget, 0, 100, 1, 0, 0 );
RetValue = Abc_NtkMiterSat( pCnf, mng->nSeconds, 0 );
// analyze the result
mng->pResult = CSAT_TargetResAlloc( Abc_NtkCiNum(mng->pTarget) );
if ( RetValue == -1 )
mng->pResult->status = UNDETERMINED;
else if ( RetValue == 1 )
mng->pResult->status = UNSATISFIABLE;
else if ( RetValue == 0 )
{
mng->pResult->status = SATISFIABLE;
// create the array of PI names and values
for ( i = 0; i < mng->pResult->no_sig; i++ )
{
mng->pResult->names[i] = CSAT_GetNodeName(mng, Abc_NtkCi(mng->pNtk, i)); // returns the same string that was given
mng->pResult->values[i] = pCnf->pModel[i];
}
FREE( mng->pTarget->pModel );
}
else assert( 0 );
Abc_NtkDelete( pCnf );
}
else if ( mng->mode == 1 ) // resource-aware fraiging
{
// transform the target into a fraig
pMan = Abc_NtkToFraig( mng->pTarget, &mng->Params, 0 );
Fraig_ManProveMiter( pMan );
RetValue = Fraig_ManCheckMiter( pMan );
// analyze the result
mng->pResult = CSAT_TargetResAlloc( Abc_NtkCiNum(mng->pTarget) );
RetValue = Fraig_ManCheckMiter( pMan );
if ( RetValue == -1 )
mng->pResult->status = UNDETERMINED;
else if ( RetValue == 1 )
......@@ -528,11 +564,13 @@ enum CSAT_StatusT CSAT_Solve( CSAT_Manager mng )
mng->pResult->values[i] = pModel[i];
}
}
else assert( 0 );
// delete the fraig manager
Fraig_ManFree( pMan );
}
else
assert( 0 );
// delete the fraig manager
Fraig_ManFree( pMan );
// delete the target
Abc_NtkDelete( mng->pTarget );
mng->pTarget = NULL;
......@@ -558,9 +596,9 @@ CSAT_Target_ResultT * CSAT_Get_Target_Result( CSAT_Manager mng, int TargetID )
/**Function*************************************************************
Synopsis [Dumps the target AIG into the BENCH file.]
Synopsis [Dumps the original network into the BENCH file.]
Description []
Description [This procedure should be modified to dump the target.]
SideEffects []
......@@ -569,11 +607,13 @@ CSAT_Target_ResultT * CSAT_Get_Target_Result( CSAT_Manager mng, int TargetID )
***********************************************************************/
void CSAT_Dump_Bench_File( CSAT_Manager mng )
{
Abc_Ntk_t * pNtkTemp;
Abc_Ntk_t * pNtkTemp, * pNtkAig;
char * pFileName;
// derive the netlist
pNtkTemp = Abc_NtkLogicToNetlistBench( mng->pTarget );
pNtkAig = Abc_NtkStrash( mng->pNtk, 0, 0 );
pNtkTemp = Abc_NtkLogicToNetlistBench( pNtkAig );
Abc_NtkDelete( pNtkAig );
if ( pNtkTemp == NULL )
{ printf( "CSAT_Dump_Bench_File: Dumping BENCH has failed.\n" ); return; }
pFileName = mng->pDumpFileName? mng->pDumpFileName: "abc_test.bench";
......
src/sat/csat/csat_apis.h
......@@ -167,6 +167,10 @@ extern enum CSAT_StatusT CSAT_Solve(CSAT_Manager mng);
extern CSAT_Target_ResultT * CSAT_Get_Target_Result(CSAT_Manager mng, int TargetID);
extern void CSAT_Dump_Bench_File(CSAT_Manager mng);
// ADDED PROCEDURES:
extern void CSAT_QuitManager( CSAT_Manager mng );
extern void CSAT_TargetResFree( CSAT_Target_ResultT * p );
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
......
src/sat/fraig/fraig.h
......@@ -43,6 +43,7 @@ struct Fraig_ParamsStruct_t_
int nPatsRand; // the number of words of random simulation info
int nPatsDyna; // the number of words of dynamic simulation info
int nBTLimit; // the max number of backtracks to perform
int nSeconds; // the timeout for the final proof
int fFuncRed; // performs only one level hashing
int fFeedBack; // enables solver feedback
int fDist1Pats; // enables distance-1 patterns
......@@ -162,8 +163,8 @@ extern int Fraig_CheckTfi( Fraig_Man_t * pMan, Fraig_Node_t * pO
extern int Fraig_CountLevels( Fraig_Man_t * pMan );
/*=== fraigSat.c =============================================================*/
extern int Fraig_NodesAreEqual( Fraig_Man_t * p, Fraig_Node_t * pNode1, Fraig_Node_t * pNode2, int nBTLimit );
extern int Fraig_NodeIsEquivalent( Fraig_Man_t * p, Fraig_Node_t * pOld, Fraig_Node_t * pNew, int nBTLimit );
extern int Fraig_NodesAreEqual( Fraig_Man_t * p, Fraig_Node_t * pNode1, Fraig_Node_t * pNode2, int nBTLimit, int nTimeLimit );
extern int Fraig_NodeIsEquivalent( Fraig_Man_t * p, Fraig_Node_t * pOld, Fraig_Node_t * pNew, int nBTLimit, int nTimeLimit );
extern void Fraig_ManProveMiter( Fraig_Man_t * p );
extern int Fraig_ManCheckMiter( Fraig_Man_t * p );
......
src/sat/fraig/fraigCanon.c
......@@ -167,7 +167,7 @@ Fraig_Node_t * Fraig_NodeAndCanon( Fraig_Man_t * pMan, Fraig_Node_t * p1, Fraig_
// there is another node which looks the same according to simulation
// use SAT to resolve the ambiguity
if ( Fraig_NodeIsEquivalent( pMan, pNodeOld, pNodeNew, pMan->nBTLimit ) )
if ( Fraig_NodeIsEquivalent( pMan, pNodeOld, pNodeNew, pMan->nBTLimit, 1000000 ) )
{
// set the node to be equivalent with this node
// to prevent loops, only set if the old node is not in the TFI of the new node
......
src/sat/fraig/fraigInt.h
......@@ -143,6 +143,7 @@ struct Fraig_ManStruct_t_
int nWordsRand; // the number of words of random simulation info
int nWordsDyna; // the number of words of dynamic simulation info
int nBTLimit; // the max number of backtracks to perform
int nSeconds; // the runtime limit for the miter proof
int fFuncRed; // performs only one level hashing
int fFeedBack; // enables solver feedback
int fDist1Pats; // enables solver feedback
......
src/sat/fraig/fraigMan.c
......@@ -46,6 +46,7 @@ void Fraig_ParamsSetDefault( Fraig_Params_t * pParams )
pParams->nPatsRand = FRAIG_PATTERNS_RANDOM; // the number of words of random simulation info
pParams->nPatsDyna = FRAIG_PATTERNS_DYNAMIC; // the number of words of dynamic simulation info
pParams->nBTLimit = 99; // the max number of backtracks to perform
pParams->nSeconds = 20; // the max number of seconds to solve the miter
pParams->fFuncRed = 1; // performs only one level hashing
pParams->fFeedBack = 1; // enables solver feedback
pParams->fDist1Pats = 1; // enables distance-1 patterns
......@@ -100,6 +101,7 @@ Fraig_Man_t * Fraig_ManCreate( Fraig_Params_t * pParams )
p->nWordsRand = FRAIG_NUM_WORDS( pParams->nPatsRand ); // the number of words of random simulation info
p->nWordsDyna = FRAIG_NUM_WORDS( pParams->nPatsDyna ); // the number of patterns for dynamic simulation info
p->nBTLimit = pParams->nBTLimit; // -1 means infinite backtrack limit
p->nSeconds = pParams->nSeconds; // the timeout for the final miter
p->fFuncRed = pParams->fFuncRed; // enables functional reduction (otherwise, only one-level hashing is performed)
p->fFeedBack = pParams->fFeedBack; // enables solver feedback (the use of counter-examples in simulation)
p->fDist1Pats = pParams->fDist1Pats; // enables solver feedback (the use of counter-examples in simulation)
......
src/sat/fraig/fraigSat.c
......@@ -56,13 +56,13 @@ extern void * Msat_ClauseVecReadEntry( void * p, int i );
SeeAlso []
***********************************************************************/
int Fraig_NodesAreEqual( Fraig_Man_t * p, Fraig_Node_t * pNode1, Fraig_Node_t * pNode2, int nBTLimit )
int Fraig_NodesAreEqual( Fraig_Man_t * p, Fraig_Node_t * pNode1, Fraig_Node_t * pNode2, int nBTLimit, int nTimeLimit )
{
if ( pNode1 == pNode2 )
return 1;
if ( pNode1 == Fraig_Not(pNode2) )
return 0;
return Fraig_NodeIsEquivalent( p, Fraig_Regular(pNode1), Fraig_Regular(pNode2), nBTLimit );
return Fraig_NodeIsEquivalent( p, Fraig_Regular(pNode1), Fraig_Regular(pNode2), nBTLimit, nTimeLimit );
}
/**Function*************************************************************
......@@ -95,7 +95,7 @@ void Fraig_ManProveMiter( Fraig_Man_t * p )
// skip nodes that are different according to simulation
if ( !Fraig_CompareSimInfo( pNode, p->pConst1, p->nWordsRand, 1 ) )
continue;
if ( Fraig_NodeIsEquivalent( p, p->pConst1, pNode, -1 ) )
if ( Fraig_NodeIsEquivalent( p, p->pConst1, pNode, -1, p->nSeconds ) )
{
if ( Fraig_IsComplement(p->vOutputs->pArray[i]) )
p->vOutputs->pArray[i] = Fraig_Not(p->pConst1);
......@@ -160,7 +160,7 @@ int Fraig_ManCheckMiter( Fraig_Man_t * p )
SeeAlso []
***********************************************************************/
int Fraig_NodeIsEquivalent( Fraig_Man_t * p, Fraig_Node_t * pOld, Fraig_Node_t * pNew, int nBTLimit )
int Fraig_NodeIsEquivalent( Fraig_Man_t * p, Fraig_Node_t * pOld, Fraig_Node_t * pNew, int nBTLimit, int nTimeLimit )
{
int RetValue, RetValue1, i, fComp, clk;
int fVerbose = 0;
......@@ -227,7 +227,7 @@ if ( fVerbose )
Msat_IntVecPush( p->vProj, MSAT_VAR2LIT(pNew->Num, !fComp) );
// run the solver
clk = clock();
RetValue1 = Msat_SolverSolve( p->pSat, p->vProj, nBTLimit );
RetValue1 = Msat_SolverSolve( p->pSat, p->vProj, nBTLimit, nTimeLimit );
p->timeSat += clock() - clk;
if ( RetValue1 == MSAT_FALSE )
......@@ -286,7 +286,7 @@ p->time3 += clock() - clk;
Msat_IntVecPush( p->vProj, MSAT_VAR2LIT(pNew->Num, fComp) );
// run the solver
clk = clock();
RetValue1 = Msat_SolverSolve( p->pSat, p->vProj, nBTLimit );
RetValue1 = Msat_SolverSolve( p->pSat, p->vProj, nBTLimit, nTimeLimit );
p->timeSat += clock() - clk;
if ( RetValue1 == MSAT_FALSE )
{
......@@ -411,7 +411,7 @@ if ( fVerbose )
Msat_IntVecPush( p->vProj, MSAT_VAR2LIT(pNew->Num, !fComp) );
// run the solver
clk = clock();
RetValue1 = Msat_SolverSolve( p->pSat, p->vProj, nBTLimit );
RetValue1 = Msat_SolverSolve( p->pSat, p->vProj, nBTLimit, 1000000 );
p->timeSat += clock() - clk;
if ( RetValue1 == MSAT_FALSE )
......
src/sat/msat/msat.h
......@@ -79,7 +79,7 @@ extern bool Msat_SolverParseDimacs( FILE * pFile, Msat_Solver_t ** p
extern bool Msat_SolverAddVar( Msat_Solver_t * p );
extern bool Msat_SolverAddClause( Msat_Solver_t * p, Msat_IntVec_t * pLits );
extern bool Msat_SolverSimplifyDB( Msat_Solver_t * p );
extern bool Msat_SolverSolve( Msat_Solver_t * p, Msat_IntVec_t * pVecAssumps, int nBackTrackLimit );
extern bool Msat_SolverSolve( Msat_Solver_t * p, Msat_IntVec_t * pVecAssumps, int nBackTrackLimit, int nTimeLimit );
// printing stats, assignments, and clauses
extern void Msat_SolverPrintStats( Msat_Solver_t * p );
extern void Msat_SolverPrintAssignment( Msat_Solver_t * p );
......
src/sat/msat/msatSolverCore.c
......@@ -131,11 +131,12 @@ void Msat_SolverPrintStats( Msat_Solver_t * p )
SeeAlso []
***********************************************************************/
bool Msat_SolverSolve( Msat_Solver_t * p, Msat_IntVec_t * vAssumps, int nBackTrackLimit )
bool Msat_SolverSolve( Msat_Solver_t * p, Msat_IntVec_t * vAssumps, int nBackTrackLimit, int nTimeLimit )
{
Msat_SearchParams_t Params = { 0.95, 0.999 };
double nConflictsLimit, nLearnedLimit;
Msat_Type_t Status;
int timeStart = clock();
int64 nConflictsOld = p->Stats.nConflicts;
int64 nDecisionsOld = p->Stats.nDecisions;
......@@ -174,6 +175,9 @@ bool Msat_SolverSolve( Msat_Solver_t * p, Msat_IntVec_t * vAssumps, int nBackTra
// if the limit on the number of backtracks is given, quit the restart loop
if ( nBackTrackLimit > 0 )
break;
// if the runtime limit is exceeded, quit the restart loop
if ( clock() - timeStart >= nTimeLimit * CLOCKS_PER_SEC )
break;
}
Msat_SolverCancelUntil( p, 0 );
p->nBackTracks = (int)p->Stats.nConflicts - p->nBackTracks;
......
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